Few airlines want to perform a total ban on their passengers using electronic devices because_______

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• 1Why is it difficult to predict the possible effects of electromagnetic fields on an airplane 'scomputers、

  A.Because it is extremely dangerous to conduct such research on an airplane.

  B.Because it remains a mystery what wavelengths are liable to be interfered with.

  C.Because research scientists have not been able to produce the same effects in labs.

  D.Because experts lack adequate equipment to do such research.

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• 2What is said about the over 100 aircraft incidents in the past 16 years、

  A.They may have been caused by the damage to-the radio systems.

  B.They may have taken place during take-off and landing.

  C.They were proved to have been caused by the passengers portable computers.

  D.They were suspected to have resulted from electromagnetic interferenc

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• 3How does the author develop the passage、

  A.By giving example.

  B.By following the order of time.

  C.By making comparisons.

  D.By his personal experienc

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• 4The gap generation sometimes is negative because_______.

  A.grandchildren can 't fit in with modern lifestyle

  B.grandparents are eager to know more technology

  C.grandchildren are addicted to their digital products

  D.grandparents spared no time with their grandchildren

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• 5What does the underlined word "pamper" mean in the passage、

  A.Spoil.

  B.Raise.

  C.Manage.

  D.Educat

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• 6The passage is mainly about_________.

  A.a new rule for all airlines

  B.the disadvantages of electronic devices

  C.a possible cause of aircraft incidents

  D.effective safety measures for air flight

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• 7Which can we know about Chinatown according to the passage、

  A.Businesses in Chinatown are going well.

  B.Local people like going shopping there.

  C.A great number of people visit it every year.

  D.No period has seen a more prosperous Chinatown.

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• 8According to the locals we can know that _______.

  A.Chinatown doesn't love to offer them assistance

  B.shops in Chinatown lack their own characteristics

  C.it is hard to buy quality goods at proper prices

  D.they feel annoyed to see so many familiar faces

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• 9What is the author's attitude towards Chinatown、

  A.Negative.

  B.Sympathy.

  C.Hopeful.

  D.Indifferent.

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• 10It can be inferred from the passage ______.

  A.the Central Subway is under construction

  B.Chinatown has to make way for subway

  C.many restaurants have been closed down

  D.the locals hope Chinatown will be extinct

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